Wulankd Wulankd 100 Pack Type F Star Drive Machine Screws(Trailer Screws), 5/16"-18 x 2-1/2 Floorboard Thread Cutting Screws Trailer Deck Screws, Black Phosphate, T-40 Star Drive Alloy Steel

About this item DESIGHED for use in floorboard trailer deck, the star drive provides better grip and less slippage compared to other drive types. FLOORBOARD SCREWS: The flat head allows for a flush installation, good choice to make a smooth surface. MATERIAL: Carbon steel (RC 46 Minimum Case Hardness). BLACK PHOSPHATE & OIL COATING: A chemically produced coating that leaves the steel surface with a matte black finish. Provides corrosion Resistance. Package Includes 100 Screws. See more product details About this item DESIGHED for use in floorboard trailer deck, the star drive provides better grip and less slippage compared to other drive types. FLOORBOARD SCREWS: The flat head allows for a flush installation, good choice to make a smooth surface. MATERIAL: Carbon steel (RC 46 Minimum Case Hardness). BLACK PHOSPHATE & OIL COATING: A chemically produced coating that leaves the steel surface with a matte black finish. Provides corrosion Resistance. Package Includes 100 Screws. See more product details